UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Hose-Clamp Saddle, Screw Housing and Worm Screw (North & Burke, 1945)
North and Burke's worm-drive hose clamp of 1945 has three small parts on the band: a U-shaped saddle welded to it, a housing that fits over the saddle as the screw's casing, held by prongs riveted through its flanges, and a screw with one continuous thread whose reduced ends sit in slots in the housing's end walls. Here they are made by hand from mild steel sheet and bar instead of being stamped; method and sizes are ours.
The picture: North and Burke's patent drawing, US 2,386,629.
Hejuru
1 day
Amabwiriza
1
1
Saddle
Saddle
From 0.8 mm mild steel sheet cut a strip as wide as the band, with two narrow tabs on each long edge for the prongs. Bend the long edges up into a U and curve the base slightly along its length to match the band.
Ibikoresho by'iyi ntambwe:
Urupapuro rw'icyuma cyoroshye1 igiceIbikoresho bikenewe:
Igikoresho Gishushanya Imirongo
Umurongo w'ipima
Ibyuma bikata ibyuma bisanzwe
Amakariso Menshi
Ifatiro ry'Ameza
Inyundo ifite umutwe utambitse
Uturindantoki tw'uruhu tw'akazi2
2
Screw housing
Screw housing
Cut a blank for the casing that fits over the saddle, with a flange along each side and an end wall at each end. Drill a hole in each flange where a prong will pass, and cut a slot down into each end wall for the screw's reduced ends. Bend it to shape.
Ibikoresho bikenewe:
Igikoresho Gishushanya ImirongoIbyuma bikata ibyuma bisanzwe
Igikoresho cyo gutobora gikoreshwa n'intokiAmakariso MenshiIfatiro ry'AmezaInyundo ifite umutwe utambitseUturindantoki tw'uruhu tw'akazi3
3
Turn the worm screw
Turn the worm screw
Chuck mild steel bar and turn the screw: a head with a screwdriver slot, a shoulder, the threaded body, and a reduced end at each end that drops into the housing's slots, with shoulders that bear on the end walls.
Ibikoresho by'iyi ntambwe:
Umutsi w'icyuma cyoroshye1 igiceIbikoresho bikenewe:
Imashini yo guhinguza icyuma
Igikoresho gifata cy'ibirenge 3 cy'imashini ihingura
Icyuma cyo kuca cy'itorero
Icyuma cyo guca ku ruziga
Umucumita w'Ibyuma
Ikigereranyo cya Digitale cy'Amasentimetero 6
Amavuta yo gukata
Amadarubindi y'umutekano4
4
Cut the thread
Cut the thread
Single-point cut one continuous thread along the body, its pitch matching the spacing of the band's slots, with a flat working face and a rounded back so it fills the slots.
Ibikoresho bikenewe:
Imashini yo guhinguza icyumaIcyuma cyo kuca cy'itorero
Igipimo cy'intera y'imiryaAmavuta yo gukata5
5
Trial fit
Trial fit
Lay the screw in the saddle with its ends in the housing's slots, fit the housing over it and check the prongs pass through the flange holes and the screw turns freely without end play. The clamp blueprint then welds, rivets and assembles them.
Ibikoresho bikenewe:
Ikigereranyo cya Digitale cy'Amasentimetero 6Amakariso MenshiIbikoresho
2- Umwanya
- 1 igiceUmwanya
Ibikoresho bikenewe
17- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
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